package com.project.interceptors;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        得到登陆对象
        Object obj = request.getSession().getAttribute("loginUser");
        if (obj==null){//没有登陆，回到登陆页
            response.sendRedirect("/login.html");
            return false;
        }
        return true;
    }
}
